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L7981A

STMicroelectronics

L7981A by STMicroelectronics

L7981A by STMicroelectronics is a voltage-mode switching regulator with 3A output current and 275kHz max switching frequency. Ideal for automotive applications, it operates b/w -40 to 125°C, supports input voltages from 4.5V to 28V, and comes in a small outline package measuring 4.9mm x 3.9mm with a seated height of 1.7mm.

Median Price

$1.360

Lifecycle Status

Suppliers In-Stock

13

In-Stock Inventory

1k+

Distributors (Authorized)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Arrow

USA . 3,963 parts In-Stock

1+ parts

$1.125

100+ parts

$0.927

1k+ parts

$0.861

10k+ parts

$0.845

3,963

$1.125

$0.927

$0.861

$0.845

Chip1Stop

Japan . 5,963 parts In-Stock

1+ parts

$1.380

100+ parts

$1.138

1k+ parts

$0.950

10k+ parts

-

5,963

$1.380

$1.138

$0.950

-

Mouser Electronics

USA . 1,782 parts In-Stock

1+ parts

$1.820

100+ parts

$1.410

1k+ parts

$1.060

10k+ parts

$1.040

1,782

$1.820

$1.410

$1.060

$1.040

DigiKey

USA . 2,076 parts In-Stock

1+ parts

$2.050

100+ parts

$1.231

1k+ parts

$1.082

10k+ parts

-

2,076

$2.050

$1.231

$1.082

-

Rochester

USA . 8,000 parts In-Stock

1+ parts

-

100+ parts

$1.360

1k+ parts

$1.130

10k+ parts

$1.010

8,000

-

$1.360

$1.130

$1.010

Verical

USA . 3,963 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

$0.845

3,963

-

-

-

$0.845

Future Electronics

Canada . 2,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

$1.070

2,000

-

-

-

$1.070

Distributors (In-Stock)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Digiode

USA . 3,654 parts In-Stock

1+ parts

$0.838

100+ parts

-

1k+ parts

-

10k+ parts

-

3,654

$0.838

-

-

-

Nova Conductors

Japan . 600 parts In-Stock

1+ parts

$1.350

100+ parts

-

1k+ parts

-

10k+ parts

-

600

$1.350

-

-

-

TME

Poland . 54 parts In-Stock

1+ parts

$2.150

100+ parts

$1.290

1k+ parts

-

10k+ parts

-

54

$2.150

$1.290

-

-

Vyrian

USA . 3,544 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

3,544

-

-

-

-

Anansix

USA . 1,191 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

1,191

-

-

-

-

Rebound Electronics

UK . 8 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

8

-

-

-

-

Distributors (Availability)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Semicontronic

India . 3,320 parts In-Stock

1+ parts

$0.462

100+ parts

$0.450

1k+ parts

$0.448

10k+ parts

-

3,320

$0.462

$0.450

$0.448

-

Ampacity Inc.

Singapore . 3,261 parts In-Stock

1+ parts

$0.462

100+ parts

-

1k+ parts

-

10k+ parts

-

3,261

$0.462

-

-

-

Corphita

USA . 1,442 parts In-Stock

1+ parts

$0.794

100+ parts

-

1k+ parts

-

10k+ parts

-

1,442

$0.794

-

-

-

Continental Prestige Electronics

USA . 4,975 parts In-Stock

1+ parts

$1.350

100+ parts

-

1k+ parts

-

10k+ parts

$1.323

4,975

$1.350

-

-

$1.323

Argo Parts USA

USA . 714 parts In-Stock

1+ parts

$1.350

100+ parts

-

1k+ parts

-

10k+ parts

-

714

$1.350

-

-

-

Vigor

Singapore . 5,000 parts In-Stock

1+ parts

$1.880

100+ parts

-

1k+ parts

-

10k+ parts

-

5,000

$1.880

-

-

-

Corohmni

South Africa . 94 parts In-Stock

1+ parts

$4.474

100+ parts

-

1k+ parts

-

10k+ parts

-

94

$4.474

-

-

-

IDEA Electronic Components Group

UK . 463 parts In-Stock

1+ parts

$9.355

100+ parts

-

1k+ parts

$8.420

10k+ parts

-

463

$9.355

-

$8.420

-

Advanced Electronics

New Zealand . 150 parts In-Stock

1+ parts

$10.687

100+ parts

$10.153

1k+ parts

$10.153

10k+ parts

-

150

$10.687

$10.153

$10.153

-

MKK Technologies

India . 156 parts In-Stock

1+ parts

$17.592

100+ parts

-

1k+ parts

-

10k+ parts

-

156

$17.592

-

-

-

DigiPath Technology Company

USA . 156 parts In-Stock

1+ parts

$17.592

100+ parts

-

1k+ parts

-

10k+ parts

-

156

$17.592

-

-

-

Aztec Data Supply Inc.

USA . 40 parts In-Stock

1+ parts

$18.380

100+ parts

-

1k+ parts

-

10k+ parts

-

40

$18.380

-

-

-

Lixinc

USA . 16,728 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

16,728

-

-

-

-

Perfect Parts

USA . 2,942 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

2,942

-

-

-

-

RC Electronics

USA . 2,500 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

2,500

-

-

-

-

Parana Technologies

USA . 2,117 parts In-Stock

1+ parts

-

100+ parts

$11.186

1k+ parts

-

10k+ parts

-

2,117

-

$11.186

-

-

A-Z Elektronik GmbH

Germany . 1,800 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

1,800

-

-

-

-

Alle Elektronik GmbH

Germany . 1,200 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

1,200

-

-

-

-

Netroflash

USA . 500 parts In-Stock

1+ parts

-

100+ parts

$1.323

1k+ parts

$1.283

10k+ parts

$1.256

500

-

$1.323

$1.283

$1.256

Robosynatics

Brazil . 250 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

250

-

-

-

-

Lucentia Tech

USA . 250 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

250

-

-

-

-

Overview

Experience top-of-the-line performance with the L7981A by STMicroelectronics, a versatile switching regulator that guarantees efficiency and reliability. Manufactured by an industry leader, this product is designed for a wide range of applications in automotive settings, offering customers unmatched value and benefits. With its compact design and advanced control mode, the L7981A provides seamless operation and maximum output current, making it the ideal choice for your power management needs.

Feature Benefit Bullets

Surface Mount: YES

Provides easy and efficient PCB assembly.

No. of Functions: 1

Simplifies the design process and reduces component count.

Package Shape: SQUARE

Allows for compact and space-saving design solutions.

No. of Terminals: 8

Provides flexibility in connecting external components.

Package Style: SMALL OUTLINE

Ideal for applications with limited board space.

Maximum Operating Temperature: 125 °C

Ensures reliable operation in various environments.

Control Mode: VOLTAGE-MODE

Offers precise control over output voltage.

Minimum Operating Temperature: -40 °C

Enables operation in extreme temperature conditions.

Terminal Finish: MATTE TIN

Enhances solderability and durability.

Terminal Position: DUAL

Offers versatility in mounting options.

Maximum Seated Height: 1.7 mm

Suitable for compact and low-profile applications.

Width (mm): 3.9 mm

Enables integration into tight spaces.

Other IC type: SWITCHING REGULATOR

Provides efficient power conversion.

Nominal Input Voltage: 12 V

Suitable for a wide range of power sources.

Maximum Time At Peak Reflow Temperature (s): 30

Facilitates easy reflow soldering process.

Peak Reflow Temperature °C: 260

Ensures reliable solder joint consistency.

Length: 4.9 mm

Contributes to overall compact design.

Temperature Grade: AUTOMOTIVE

Designed for automotive applications.

Maximum Switching Frequency: 275 kHz

Enables fast and efficient power conversion.

Maximum Output Current: 3 A

Provides ample power for various loads.

Terminal Form: NO LEAD

Contributes to environmental sustainability.

Control Technique: PULSE WIDTH MODULATION

Offers efficient power control.

Switcher Config: BUCK

Ideal for step-down voltage conversion.

Terminal Pitch: 1.27 mm

Facilitates easy soldering and connection.

Moisture Sensitivity Level (MSL): 3

Suitable for various environmental conditions.

Minimum Input Voltage: 4.5 V

Supports operation with low input voltages.

Maximum Input Voltage: 28 V

Allows for compatibility with high voltage sources.

Technical Specifications

Switching Regulators & Controllers L7981A attributes and parameters. Explore more Switching Regulators & Controllers devices from STMicroelectronics

Specs

Additional Features:

ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 V

Other IC type:

Control Mode:

VOLTAGE-MODE

Control Technique:

PULSE WIDTH MODULATION

Maximum Input Voltage:

28 V

Minimum Input Voltage:

4.5 V

Nominal Input Voltage:

12 V

JESD-30 Code:

S-XDSO-N8

JESD-609 Code:

e3

Length:

4.9 mm

Moisture Sensitivity Level (MSL):

3

No. of Functions:

1

No. of Terminals:

8

Maximum Operating Temperature:

125 Cel

Minimum Operating Temperature:

-40 Cel

Maximum Output Current:

3 A

Package Body Material:

UNSPECIFIED

Package Code:

Package Equivalence Code:

SOP8,.25

Package Shape:

Package Style (Meter):

SMALL OUTLINE

Peak Reflow Temperature (C):

260

Qualification:

Not Qualified

Maximum Seated Height:

1.7 mm

Sub-Category:

Switching Regulator or Controllers

Surface Mount:

YES

Switcher Config:

BUCK

Maximum Switching Frequency:

275 kHz

Temperature Grade:

Terminal Finish:

MATTE TIN

Terminal Form:

NO LEAD

Terminal Pitch:

1.27 mm

Terminal Position:

DUAL

Maximum Time At Peak Reflow Temperature (s):

30

Width (mm):

3.9 mm

Trade Compliance

L7981A Other Function Semiconductors trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

HTS

8542.39.00.01

SB

8542.39.00.00

PCN

Manufacturer Highlights

STMicroelectronics

STMicroelectronics is a global leader in the semiconductor manufacturing industry, with over 35 years of experience providing innovative and advanced technologies for customers around the world. Headquartered in Netherlands, STMicroelectronics has more than 51,323 employees worldwide and operates across 32 countries all over Europe, Asia-Pacific and the Americas. The company’s portfolio includes integrated circuits, discrete components, application-specific standard products, and computer chipsets. STMicroelectronics serves a wide range of industries such as automotive, consumer markets, healthcare and industrial applications.

Management team

President, CEO

Jean-Marc Chery

President, CFO, Finance, Purchasing,Enterprise Risk Management & Resilience

Lorenzo Grandi

President, Sales & Marketing

Jerome Roux

Manufacturer fab locations 33

Fab name Location Fab Initiation Wafer Capacity

Castelletto

Fabrication

Fab Initiation

1968

Italy

Castelletto

Wafer Capacity

1968

SGFAB AMK 6

Fabrication

Fab Initiation

2000

Singapore

Singapore

Wafer Capacity

29,000

2000

29,000

AG200

Fabrication

Fab Initiation

2000

Italy

Agrate Brianza

Wafer Capacity

14,000

2000

14,000

RST 8

Fabrication

Fab Initiation

2000

France

Rousset

Wafer Capacity

35,000

2000

35,000

Crolles 1

Fabrication

Fab Initiation

1993

France

Crolles

Wafer Capacity

30,000

1993

30,000

Crolles 2-ext. mod 5

Fabrication

Fab Initiation

-

France

Crolles

Wafer Capacity

-

Crolles 2-ext. mod 2

Fabrication

Fab Initiation

2022

France

Crolles

Wafer Capacity

2022

Crolles 2-ext. mod 3

Fabrication

Fab Initiation

2023

France

Crolles

Wafer Capacity

2023

Crolles 2

Fabrication

Fab Initiation

2004

France

Crolles

Wafer Capacity

28,000

2004

28,000

AG200

Fabrication

Fab Initiation

1985

Italy

Agrate Brianza

Wafer Capacity

14,000

1985

14,000

SiC Fab

Fabrication

Fab Initiation

2006

Sweden

Norrköping

Wafer Capacity

10,000

2006

10,000

Fab 3

Fabrication

Fab Initiation

2005

France

Tours

Wafer Capacity

2,000

2005

2,000

Fab 1 & Fab 2

Fabrication

Fab Initiation

1978

France

Tours

Wafer Capacity

55,000

1978

55,000

Fab 2

Fabrication

Fab Initiation

1997

Italy

Catania

Wafer Capacity

30,000

1997

30,000

SGFAB-AMK 6E

Fabrication

Fab Initiation

2003

Singapore

Singapore

Wafer Capacity

145,000

2003

145,000

SGFAB-AMJ 9

Fabrication

Fab Initiation

1984

Singapore

Singapore

Wafer Capacity

152,000

1984

152,000

AG300 (R3)

Fabrication

Fab Initiation

2022

Italy

Agrate Brianza

Wafer Capacity

2022

Fab 2

Fabrication

Fab Initiation

1980

Italy

Catania

Wafer Capacity

25,000

1980

25,000

AG200

Fabrication

Fab Initiation

1987

Italy

Agrate Brianza

Wafer Capacity

34,000

1987

34,000

AG300

Fabrication

Fab Initiation

2024

Italy

Agrate Brianza

Wafer Capacity

2024

Crolles 2-ext. mod 1

Fabrication

Fab Initiation

2020

France

Crolles

Wafer Capacity

2,000

2020

2,000

Fab 1 6-inch fab

Fabrication

Fab Initiation

2013

Italy

Catania

Wafer Capacity

11,000

2013

11,000

SiC 6-inch line

Fabrication

Fab Initiation

2021

Singapore

Singapore

Wafer Capacity

2021

Fab 1 6-inch fab

Fabrication

Fab Initiation

2020

Italy

Catania

Wafer Capacity

2,500

2020

2,500

200mm GaN

Fabrication

Fab Initiation

2021

France

Tours

Wafer Capacity

2,500

2021

2,500

Fab 2

Fabrication

Fab Initiation

2018

Italy

Catania

Wafer Capacity

14,000

2018

14,000

SGFAB-AMK 8

Fabrication

Fab Initiation

2001

Singapore

Singapore

Wafer Capacity

30,000

2001

30,000

Crolles 2- JV Fab

Fabrication

Fab Initiation

2024

France

Crolles

Wafer Capacity

2024

SGFAB-AMK 6

Fabrication

Fab Initiation

2016

Singapore

Singapore

Wafer Capacity

38,125

2016

38,125

SGFAB-AMK 2E

Fabrication

Fab Initiation

2010

Singapore

Singapore

Wafer Capacity

20,000

2010

20,000

Silicon Carbide A.B.

Fabrication

Fab Initiation

2021

Sweden

Norrköping

Wafer Capacity

2021

SiC wafer/EPI Fab

Fabrication

Fab Initiation

2023

Italy

Catania

Wafer Capacity

2023

SiC Device Fab

Fabrication

Fab Initiation

2025

Italy

Catania

Wafer Capacity

2025

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